From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: [PATCH v4 10/26] KVM: arm/arm64: GICv4: Handle INT command applied to a VLPI Date: Fri, 6 Oct 2017 16:33:45 +0100 Message-ID: <20171006153401.5481-11-marc.zyngier@arm.com> References: <20171006153401.5481-1-marc.zyngier@arm.com> Return-path: In-Reply-To: <20171006153401.5481-1-marc.zyngier@arm.com> Sender: kvm-owner@vger.kernel.org To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: Christoffer Dall , Eric Auger , Shanker Donthineni , Mark Rutland , Shameerali Kolothum Thodi , Andre Przywara List-Id: kvmarm@lists.cs.columbia.edu If the guest issues an INT command targetting a VLPI, let's call into the irq_set_irqchip_state() helper to make it pending on the physical side. This works just as well if userspace decides to inject an interrupt using the normal userspace API... Acked-by: Christoffer Dall Signed-off-by: Marc Zyngier --- virt/kvm/arm/vgic/vgic-its.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index 89768d2b6a91..b2a678d131d0 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -578,6 +578,10 @@ static int vgic_its_trigger_msi(struct kvm *kvm, struct vgic_its *its, if (err) return err; + if (irq->hw) + return irq_set_irqchip_state(irq->host_irq, + IRQCHIP_STATE_PENDING, true); + spin_lock(&irq->irq_lock); irq->pending_latch = true; vgic_queue_irq_unlock(kvm, irq); -- 2.14.1